Weaknesses are not the same as vulnerabilities. For instance, a druid will not take extra damage from iron weapons, but wearing iron will interfere with spellcasting for druids, so iron is a weakness for druids. Here follows a list of other weaknesses: Storm giants - Wooden weapons bypass their resistance. Undead - Silver weapons bypass the resistances of most undead. Iron - elves have acute eyesight, but iron is hard for them to see which leads to a dodge penalty against iron weapons. Adamantium - This material overcomes jotun resistance and crystalline skin. See also: EXPOSURE